linux/drivers/acpi/blacklist.c
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   1/*
   2 *  blacklist.c
   3 *
   4 *  Check to see if the given machine has a known bad ACPI BIOS
   5 *  or if the BIOS is too old.
   6 *  Check given machine against acpi_osi_dmi_table[].
   7 *
   8 *  Copyright (C) 2004 Len Brown <len.brown@intel.com>
   9 *  Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
  10 *
  11 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  12 *
  13 *  This program is free software; you can redistribute it and/or modify
  14 *  it under the terms of the GNU General Public License as published by
  15 *  the Free Software Foundation; either version 2 of the License, or (at
  16 *  your option) any later version.
  17 *
  18 *  This program is distributed in the hope that it will be useful, but
  19 *  WITHOUT ANY WARRANTY; without even the implied warranty of
  20 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 *  General Public License for more details.
  22 *
  23 *  You should have received a copy of the GNU General Public License along
  24 *  with this program; if not, write to the Free Software Foundation, Inc.,
  25 *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  26 *
  27 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  28 */
  29
  30#include <linux/kernel.h>
  31#include <linux/init.h>
  32#include <linux/acpi.h>
  33#include <acpi/acpi_bus.h>
  34#include <linux/dmi.h>
  35
  36#include "internal.h"
  37
  38enum acpi_blacklist_predicates {
  39        all_versions,
  40        less_than_or_equal,
  41        equal,
  42        greater_than_or_equal,
  43};
  44
  45struct acpi_blacklist_item {
  46        char oem_id[7];
  47        char oem_table_id[9];
  48        u32 oem_revision;
  49        char *table;
  50        enum acpi_blacklist_predicates oem_revision_predicate;
  51        char *reason;
  52        u32 is_critical_error;
  53};
  54
  55static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
  56
  57/*
  58 * POLICY: If *anything* doesn't work, put it on the blacklist.
  59 *         If they are critical errors, mark it critical, and abort driver load.
  60 */
  61static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
  62        /* Compaq Presario 1700 */
  63        {"PTLTD ", "  DSDT  ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
  64         "Multiple problems", 1},
  65        /* Sony FX120, FX140, FX150? */
  66        {"SONY  ", "U0      ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
  67         "ACPI driver problem", 1},
  68        /* Compaq Presario 800, Insyde BIOS */
  69        {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
  70         "Does not use _REG to protect EC OpRegions", 1},
  71        /* IBM 600E - _ADR should return 7, but it returns 1 */
  72        {"IBM   ", "TP600E  ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
  73         "Incorrect _ADR", 1},
  74
  75        {""}
  76};
  77
  78#if     CONFIG_ACPI_BLACKLIST_YEAR
  79
  80static int __init blacklist_by_year(void)
  81{
  82        int year;
  83
  84        /* Doesn't exist? Likely an old system */
  85        if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) {
  86                printk(KERN_ERR PREFIX "no DMI BIOS year, "
  87                        "acpi=force is required to enable ACPI\n" );
  88                return 1;
  89        }
  90        /* 0? Likely a buggy new BIOS */
  91        if (year == 0) {
  92                printk(KERN_ERR PREFIX "DMI BIOS year==0, "
  93                        "assuming ACPI-capable machine\n" );
  94                return 0;
  95        }
  96        if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
  97                printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), "
  98                       "acpi=force is required to enable ACPI\n",
  99                       year, CONFIG_ACPI_BLACKLIST_YEAR);
 100                return 1;
 101        }
 102        return 0;
 103}
 104#else
 105static inline int blacklist_by_year(void)
 106{
 107        return 0;
 108}
 109#endif
 110
 111int __init acpi_blacklisted(void)
 112{
 113        int i = 0;
 114        int blacklisted = 0;
 115        struct acpi_table_header table_header;
 116
 117        while (acpi_blacklist[i].oem_id[0] != '\0') {
 118                if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
 119                        i++;
 120                        continue;
 121                }
 122
 123                if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
 124                        i++;
 125                        continue;
 126                }
 127
 128                if (strncmp
 129                    (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
 130                     8)) {
 131                        i++;
 132                        continue;
 133                }
 134
 135                if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
 136                    || (acpi_blacklist[i].oem_revision_predicate ==
 137                        less_than_or_equal
 138                        && table_header.oem_revision <=
 139                        acpi_blacklist[i].oem_revision)
 140                    || (acpi_blacklist[i].oem_revision_predicate ==
 141                        greater_than_or_equal
 142                        && table_header.oem_revision >=
 143                        acpi_blacklist[i].oem_revision)
 144                    || (acpi_blacklist[i].oem_revision_predicate == equal
 145                        && table_header.oem_revision ==
 146                        acpi_blacklist[i].oem_revision)) {
 147
 148                        printk(KERN_ERR PREFIX
 149                               "Vendor \"%6.6s\" System \"%8.8s\" "
 150                               "Revision 0x%x has a known ACPI BIOS problem.\n",
 151                               acpi_blacklist[i].oem_id,
 152                               acpi_blacklist[i].oem_table_id,
 153                               acpi_blacklist[i].oem_revision);
 154
 155                        printk(KERN_ERR PREFIX
 156                               "Reason: %s. This is a %s error\n",
 157                               acpi_blacklist[i].reason,
 158                               (acpi_blacklist[i].
 159                                is_critical_error ? "non-recoverable" :
 160                                "recoverable"));
 161
 162                        blacklisted = acpi_blacklist[i].is_critical_error;
 163                        break;
 164                } else {
 165                        i++;
 166                }
 167        }
 168
 169        blacklisted += blacklist_by_year();
 170
 171        dmi_check_system(acpi_osi_dmi_table);
 172
 173        return blacklisted;
 174}
 175#ifdef CONFIG_DMI
 176static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
 177{
 178        acpi_dmi_osi_linux(1, d);       /* enable */
 179        return 0;
 180}
 181static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
 182{
 183        printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
 184        acpi_osi_setup("!Windows 2006");
 185        acpi_osi_setup("!Windows 2006 SP1");
 186        acpi_osi_setup("!Windows 2006 SP2");
 187        return 0;
 188}
 189static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
 190{
 191        printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
 192        acpi_osi_setup("!Windows 2009");
 193        return 0;
 194}
 195static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
 196{
 197        printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
 198        acpi_osi_setup("!Windows 2012");
 199        return 0;
 200}
 201
 202static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 203        {
 204        .callback = dmi_disable_osi_vista,
 205        .ident = "Fujitsu Siemens",
 206        .matches = {
 207                     DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 208                     DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
 209                },
 210        },
 211        {
 212        /*
 213         * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
 214         * driver (e.g. nouveau) when user press brightness hotkey.
 215         * Currently, nouveau driver didn't do the job and it causes there
 216         * have a infinite while loop in DSDT when user press hotkey.
 217         * We add MSI GX723's dmi information to this table for workaround
 218         * this issue.
 219         * Will remove MSI GX723 from the table after nouveau grows support.
 220         */
 221        .callback = dmi_disable_osi_vista,
 222        .ident = "MSI GX723",
 223        .matches = {
 224                     DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 225                     DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
 226                },
 227        },
 228        {
 229        .callback = dmi_disable_osi_vista,
 230        .ident = "Sony VGN-NS10J_S",
 231        .matches = {
 232                     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 233                     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
 234                },
 235        },
 236        {
 237        .callback = dmi_disable_osi_vista,
 238        .ident = "Sony VGN-SR290J",
 239        .matches = {
 240                     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 241                     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
 242                },
 243        },
 244        {
 245        .callback = dmi_disable_osi_vista,
 246        .ident = "VGN-NS50B_L",
 247        .matches = {
 248                     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 249                     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
 250                },
 251        },
 252        {
 253        .callback = dmi_disable_osi_vista,
 254        .ident = "Toshiba Satellite L355",
 255        .matches = {
 256                     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 257                     DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
 258                },
 259        },
 260        {
 261        .callback = dmi_disable_osi_win7,
 262        .ident = "ASUS K50IJ",
 263        .matches = {
 264                     DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
 265                     DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
 266                },
 267        },
 268        {
 269        .callback = dmi_disable_osi_vista,
 270        .ident = "Toshiba P305D",
 271        .matches = {
 272                     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 273                     DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
 274                },
 275        },
 276        {
 277        .callback = dmi_disable_osi_win8,
 278        .ident = "ASUS Zenbook Prime UX31A",
 279        .matches = {
 280                     DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 281                     DMI_MATCH(DMI_PRODUCT_NAME, "UX31A"),
 282                },
 283        },
 284        {
 285        .callback = dmi_disable_osi_win8,
 286        .ident = "Dell Inspiron 15R SE",
 287        .matches = {
 288                     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 289                     DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7520"),
 290                },
 291        },
 292        {
 293        .callback = dmi_disable_osi_win8,
 294        .ident = "Lenovo ThinkPad Edge E530",
 295        .matches = {
 296                     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 297                     DMI_MATCH(DMI_PRODUCT_VERSION, "3259A2G"),
 298                },
 299        },
 300
 301        /*
 302         * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
 303         * Linux ignores it, except for the machines enumerated below.
 304         */
 305
 306        /*
 307         * Lenovo has a mix of systems OSI(Linux) situations
 308         * and thus we can not wildcard the vendor.
 309         *
 310         * _OSI(Linux) helps sound
 311         * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
 312         * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
 313         * T400, T500
 314         * _OSI(Linux) has Linux specific hooks
 315         * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
 316         * _OSI(Linux) is a NOP:
 317         * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
 318         * DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
 319         */
 320        {
 321        .callback = dmi_enable_osi_linux,
 322        .ident = "Lenovo ThinkPad R61",
 323        .matches = {
 324                     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 325                     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
 326                },
 327        },
 328        {
 329        .callback = dmi_enable_osi_linux,
 330        .ident = "Lenovo ThinkPad T61",
 331        .matches = {
 332                     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 333                     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
 334                },
 335        },
 336        {
 337        .callback = dmi_enable_osi_linux,
 338        .ident = "Lenovo ThinkPad X61",
 339        .matches = {
 340                     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 341                     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
 342                },
 343        },
 344        {
 345        .callback = dmi_enable_osi_linux,
 346        .ident = "Lenovo ThinkPad T400",
 347        .matches = {
 348                     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 349                     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T400"),
 350                },
 351        },
 352        {
 353        .callback = dmi_enable_osi_linux,
 354        .ident = "Lenovo ThinkPad T500",
 355        .matches = {
 356                     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 357                     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"),
 358                },
 359        },
 360        {}
 361};
 362
 363#endif /* CONFIG_DMI */
 364
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